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How to force keyboard with numbers in mobile website in Android
... direction. We're just trying to see if our customer base will not benefit from this.
– Philll_t
Mar 29 '15 at 21:04
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What is the fastest way to check if a class has a function defined?
...he function looks up the arguments in a dict, finds the result in the dict from when the actual function computed the result, and returns the result right away.
Here is a recipe for a memoizing decorator called "lru_cache" by Raymond Hettinger. A version of this is now standard in the functools mo...
Java 8 Distinct by property
...is ordered and is run in parallel, this will preserve an arbitrary element from among the duplicates, instead of the first one, as distinct() does.
(This is essentially the same as my answer to this question: Java Lambda Stream Distinct() on arbitrary key?)
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How to get nice formatting in the Rails console
...e before you can get the y method to work:
YAML::ENGINE.yamler = 'syck'
From ruby-docs
In older Ruby versions, ie. <= 1.9, Syck is still provided, however it
was completely removed with the release of Ruby 2.0.0.
For rails 4/ruby 2 you could use just
puts object.to_yaml
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How to write a bash script that takes optional input arguments?
...s an empty string), use this syntax instead:
somecommand ${1-foo}
Again from Bash Reference Manual - 3.5.3 Shell Parameter Expansion:
Omitting the colon results in a test only for a parameter that is unset. Put another way, if the colon is included, the operator tests for both parameter’s e...
How to declare a local variable in Razor?
...lps you to have at first a cleaner code and also you can prevent your page from loading many times different blocks of codes
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How do I create a URL shortener?
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asides from the fact that A-Z, a-z and 0-9 = 62 chars, not 40, you are right on the mark.
– Evan Teran
Apr 12 '09 at 16:39
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Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
... is and a common way of ending up with it (i.e., failure to return a value from a function).
Another common reason you have None where you don't expect it is assignment of an in-place operation on a mutable object. For example:
mylist = mylist.sort()
The sort() method of a list sorts the list i...
How do I use spaces in the Command Prompt?
... app xyz which location is :
C:\Program Files\ab cd\xyz.exe
To run this from windows cmd prompt, you need to use
C:\"Program Files"\"ab cd"\xyz.exe
or
"C:\Program Files\ab cd\xyz.exe"
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Why catch and rethrow an exception in C#?
...bout right... consider the case of null pointer exception thrown somewhere from a large body of code. The message is vanilla, without the stack trace you're left with "something was null somewhere". NOT good when production is dead; and you've NO minutes or less to work out the flamin' problem is, a...